diff --git a/software/kumofs/software.cfg b/software/kumofs/software.cfg
index b5fafe2cf9c2271e4cd4b702287dcfdc8109aff9..2ebf358f9e1ca988c311799265129827d57c0110 100644
--- a/software/kumofs/software.cfg
+++ b/software/kumofs/software.cfg
@@ -19,6 +19,7 @@ extends =
   ../../component/stunnel/buildout.cfg
   ../../component/python-2.7/buildout.cfg
   ../../component/rdiff-backup/buildout.cfg
+  ../../component/lxml-python/buildout.cfg
 
 versions = versions
 
@@ -26,6 +27,7 @@ parts +=
 # Create instance template
 #TODO : list here all parts.
   template
+  eggs
   instance-recipe-egg
 
 # XXX: Workaround of SlapOS limitation
@@ -49,9 +51,15 @@ module = kumofs
 # - we cannot rely on anything else being executed before [instance-recipe]
 slaposcookbook_dummy = ${slaposcookbook:location}
 recipe = zc.recipe.egg
-#python = python2.6
+python = python2.6
 eggs = ${instance-recipe:egg}
 
+[eggs]
+recipe = zc.recipe.egg
+python = python2.6
+eggs =
+  ${lxml-python:egg}
+
 [template]
 # Default template for the instance.
 recipe = slapos.recipe.template
@@ -72,10 +80,13 @@ update-command = cd ${:location} && ${git:location}/bin/git pull --quiet
 [versions]
 # Required by:
 # slapos.cookbook==0.1
-collective.recipe.template = 1.8
-slapos.slap = 1.2.dev-r4679
-netaddr = 0.7.5
-xml-marshaller = 0.9.7
+#collective.recipe.template = 1.8
+#slapos.slap = 1.2.dev-r4679
+#netaddr = 0.7.5
+#xml-marshaller = 0.9.7
+
+#zc.buildout=1.5.3-dev-SlapOS-002
+#setuptools = 0.6c12dev-r88795
 
-zc.buildout=1.5.3-dev-SlapOS-002
-setuptools = 0.6c12dev-r88795
\ No newline at end of file
+# Use SlapOS patched zc.buildout
+zc.buildout = 1.5.3-dev-SlapOS-001
\ No newline at end of file